Mou!! = Urghhh!!!
Doshita?/ Doshita nanno? = Why?/ What is it?
Sore wa = That is
Kirei = pretty
Sugoi = awesome/ very good
Sou ka = Is that so
Sakura = Cherry Blossom
Henna Yatsu = Your weird
Botan = Peony
Nanni mo nai yo = nothing/ There's nothing wrong!
Samui = cold
Iie = no
Chigaimasu = no, your wrong
Okashii na = its funny
Nan' datto?! = What do you mean?!
Daikirai = I hate you/ I don't like you
Suki = like
Aishiteru = I love you
Ai = love
Dakishimette = hug /hug me
- san = added as a formality (for elders; not a friend)
- chan = added as a formality for girls (women)
- kun = added as a formality for boys (men)

Aya: Although I wanted to put all my knowledge in Japanese in here… I just put the words that is used in fanfics for a while^^…